The following spare parts are available for this model:
60-61997 - LED Lamp,
03-25327-01 - Lockout Reset circuit Board,
1031224 - Premix Burner,
1030136 - Premix Burner,
60-61998 - Lockout Reset Switch,
1037453 - Chamber Insulation Kit, F(12),
1037440 - Probe Mounting Gasket Kit,
1030638 - Ignition Transformer,
1038152 - Ignition Controller Kit For RHC21 4100-12,
1037360 - NO LONGER AVAILABLE Burner Face Insulation / Burner Face gasket OBSOLETE,
03-24976 - Gas Valve Flange & O Ring Assy,
1031727 - Collector Box U - Gasket,
1038085 - Probe Assembly Kit Complete (Not for RHC21-4024-05),
1026946 - Fan Trans Gasket,
1026947 - Combustion Fan Gasket,
1037454 - Chamber Insulation Kit, G(15),
1030864 - Gas Valve Lead,
1030499 - Gas Valve,
03-24976-02 - Gas Valve Flange & O Ring Assy,
1030764 - Venturi Kit,
1037461 - Combustion Fan Kit,
28-50-038 - Green Neon Lamp,
1031960 - LC3 Limit Stat (Standard Hand & Opposite Hand)